for master lock 1500's, i recommend finding a lock that has no four detents, then you can add 10's by picking and adding 5 in the second position. i know that this is a bit more work, but it will be worth it. if your resistant number has a number of picks of 5, then you will need to pick 5 5 times and add 5 10's to get to your resistant number. this method also works well with master lock 2000's.
if you have a master lock that has 5 detents and a resistant number of 65, then you will need to pick 65 5 times to get to your resistant number. if you have an anomaly to the 3 detents on the lock, then you may have a resistant number of 80. you will need to find the anomaly and pick it five times to get to your resistant number. you may have to add 5 10's to get to your resistant number, but the number of picks that you have to use will be less.
in the meantime, you should be able to get any master lock to work, but the author of this project specifically mentions that it will not work with many master locks, so you should probably move on to a different project if you do manage to get it to work.
i tried this several times with different master locks and it worked as outlined (i am used to using the 100 try method), but i came across a lock today that it would not work on. it's a master lock with a red dial and keyhole in the back. the numbers on the dial do not line up the same way they do on a standard master. i could not even do the 100 try method as i could not isolate the third digit. for this method however, i came close, but could not feel the resistant location. thoughts anyone 3d9ccd7d82